Flying Fox Question

[PlatinumAngel]

I have two in a community tank. Lately, one has taken to resting on a rock sculpture or bent leaves and just kind of sitting there for a while. My levels are at 0, so the water perimiters are fine. I see no signs of anything parasite or fungus wise on anyone. The only difference is that this one may be a tiny bit darker than the other.

Any thoughts?

 

[Loony Fish]

my rainbow shark does that all the time... he's fine.
the rainbow shark is VERY closely related.

 

[PlatinumAngel]

ok, just got a tad worried as I've had them for a month and it only just started doing this.